FAST N’ FREE SAME DAY PRIORITY SHIPPING!!! The ZYRTEC 2 X 90 TABLETS (180 TABLETS) original strength allergy relief with 24-hour protection, suitable for both indoor and outdoor use. Each tablet contains 10mg of citirizine hci, the active ingredient that provides relief from allergy symptoms. With a formulation of tablets and FDA approval, this product from the Zyrtec brand is designed for adult use and is backed by a variety of lot numbers. Whether taken orally indoors or outdoors, these tablets provide effective allergy relief for a duration of up to 05/2028 or later.